Effect of Different Repeated Pollination on Producing Cross Seed of Tomato in Protected Field

Effects of pollination times on cross seed production of tomato in protected field were studied by employing the parents of tomato hybrid combinations-"Jinpeng1" as materials to carry out three pollination times treatments by one time,two times and three times on female parent plants that their density is 222.7 plants/hm2 and pruning way is two branches pruning,during the pollination period.The results showed that: the highest fruit bearing percentage is obtained by three times pollination.there is most significant difference than by one time pollination,not significant difference than by two times pollination;there are more significant differentce on the seed number per fruit,the seed yield per fruit,plot field,the tendency of seed germination and the rate of seed germination than by one time pollination,not significant difference than by two times pollination;the highest thousand seed weight is obtained by two times pollination,there is no significant different between one time pollination and three times pollination.Two times pollination is the best repeated pollination.